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Table 1 Characteristics of the four cases in this study

From: Encephalitis temporally associated with live attenuated Japanese encephalitis vaccine: four case reports

Characteristics Case 1 Case 2 Case 3 Case 4
Age 9 months 4 years 4 years 5 years
Sex Female Male Female Male
Days from vaccination to onset of disease 11 7 14 11
Past medical history None None None None
Other vaccines None None None None
Days from the onset of symptoms to CSF with or without serum sample collection 4 1 4 3
CSF color Clear Clear Clear Clear
JEV IgM antibodies in CSF* Positive Positive Positive Positive
JEV IgM antibodies in serum* Positive NA Positive NA
  1. * Serological testing was conducted by Japanese encephalitis virus-specific immunoglobulin M (IgM) antibody-capture enzyme-linked immunosorbent assay
  2. CSF: cerebrospinal fluid
  3. NA: not available